 Brady's Jeep Nellybelle at times had a mind of her own and sped away driverless with Brady in frantic pursuit on foot.Animal stars were Roy's Palomino horse Trigger and his German Shepherd Bullet, the "Wonder Dog".As with many other Western films of the 1930s–1950s, the "Roy Rogers Show" featured cowboys and cowgirls riding horses and carrying six-shooters, but unlike traditional westerns, the series had a contemporary setting with automobiles, telephones, and electric lighting.